Aloha -- I believe I am having a similar problem with my HP Pavillion a255c desktop, with a Pentium 4 and windows xp. I ran my norton virus scan on the c drive 3 days ago -- and when I came home, there was a black screen with NTLDR is missing message. Then press ctrl+alt+del to restart (which doesn't work). The only F key that works is F1.
I have my backup windows files on a d: partition -- not on a disc. I downloaded discs as directed when I got it, but it will not boot from them. I got a friend's windows xp boot disc and can boot from that, but it takes me to choices i'm not familiar with.
...to set up windows xp press enter
...to repair windows xp installation using recovery console press r (I tried this and it takes me to D: where my backup is -- but it gives me DOS codes and i'm afraid i might put in the wrong thing.
Any recommendations? :-?
Bootless